The political gap between gun owners and non-owners gets larger in nearly every election cycle, researchers have found.
The mayors call on Congress to oppose legislation that would force states to recognize concealed carry weapon permits from other states.
The legislation is a direct response to last week's shooting in Alexandria, Virginia, at a congressional baseball game practice.
It was a Republican legislator's third attempt to have Louisiana join 12 other states that don't require permits.
The cyclists are riding with their backs to Congress this year to protest lawmakers not passing measures to reduce gun violence.
The Senate bill to allow concealed carry of guns nationwide currently has 36 co-sponsors, all of whom are Republicans.
Giffords and other Democrats met on Capitol Hill Wednesday, just days after President Trump addressed thousands of NRA members.
A study has found that even those who own guns favor placing restrictions on where law-abiding citizens can carry firearms.
For years, national reciprocity has been a top priority for the National Rifle Association.
Despite the 2008 "Heller" case, the Supreme Court has not yet ruled on the right to carry a gun outside of the home.
Everytown is threatening to hold elected officials responsible for their gun votes during their 2018 election races.
Under a new Arkansas law, colleges will be able to decide whether fans bring guns to athletic events.
Twelve states now allow their residents to carry concealed firearms without permits.
A congresswoman from Florida takes a step toward eliminating a decades-old ban on gun-violence research.